<template>
  <div class="cmt-container">
    <h3>发表评论</h3>
    <hr>
    <textarea name id maxlength="120" v-model="msg"></textarea>

    <mt-button type="primary" size="large" @click="postComment">发布评论</mt-button>
    <div class="cmt-list">
      <div class="cmt-item" v-for="(item,i) in  comments" :key="i">
        <div
          class="cmt-title"
        >第{{i+1}}楼&nbsp;&nbsp;用户:{{item.user_name}}&nbsp;发表时间:{{item.add_time | format}}</div>
        <div class="cmt-body">{{item.content==""?"这家伙很懒啥都没留下":item.content}}</div>
      </div>
    </div>

    <mt-button type="danger" size="large" @click="getMore">加载更多</mt-button>
  </div>
</template>

<script>
import { getcomments, postcomment } from "@/api";

import {Toast} from 'mint-ui'
export default {
  data() {
    return {
      pageindex: 1,
      msg: "",
      comments: []
    };
  },
  created() {
    this.init();
  },
  methods: {
    init() {
      //{id:2,pageindex:1}
      getcomments({ id: this.id, pageindex: this.pageindex }).then(res => {
        //console.log(res, 777);
        this.comments = this.comments.concat(res.data.message);
      });
    },
    postComment() {
      // 校验是否为空内容
      if (this.msg.trim().length === 0) {
        return Toast("评论内容不能为空！");
      }
      postcomment({ id: this.id, content: this.msg }).then(res => {
        console.log(res, 67);
        if(res.data.status==0){
            Toast("评论成功");
            var  obj={
                user_name:"匿名",
                add_time:Date.now(),
                content:this.msg
            }
            this.comments.unshift(obj);
        }else{
            Toast("评论失败");
        }
      });
    },
    getMore() {
      this.pageindex++;
      this.init();
    }
  },
  props: ["id"]
};
</script>


<style lang="less" scoped>
.cmt-container {
  h3 {
    font-size: 18px;
  }
  textarea {
    font-size: 14px;
    height: 85px;
    margin: 0;
  }
  .cmt-list {
    margin: 10px 0;
    .cmt-item {
      font-size: 13px;
      .cmt-title {
        line-height: 30px;
        background-color: #ccc;
        .cmt-body {
          line-height: 30px;
          text-indent: 2em;
        }
      }
    }
  }
}
</style>

